University of Sussex
Browse
Kanai_plos_biology_sept15(published version).PDF (2.49 MB)

Time adaptation shows duration selectivity in the human parietal cortex

Download (2.49 MB)
journal contribution
posted on 2023-06-09, 15:24 authored by Masamichi J Hayashi, Thomas Ditye, Tokiko Harada, Maho Hashiguchi, Norihiro Sadato, Synnöve Carlson, Vincent Walsh, Ryota Kanai
Although psychological and computational models of time estimation have postulated the existence of neural representations tuned for specific durations, empirical evidence of this notion has been lacking. Here, using a functional magnetic resonance imaging (fMRI) adaptation paradigm, we show that the inferior parietal lobule (IPL) (corresponding to the supramarginal gyrus) exhibited reduction in neural activity due to adaptation when a visual stimulus of the same duration was repeatedly presented. Adaptation was strongest when stimuli of identical durations were repeated, and it gradually decreased as the difference between the reference and test durations increased. This tuning property generalized across a broad range of durations, indicating the presence of general time-representation mechanisms in the IPL. Furthermore, adaptation was observed irrespective of the subject’s attention to time. Repetition of a nontemporal aspect of the stimulus (i.e., shape) did not produce neural adaptation in the IPL. These results provide neural evidence for duration-tuned representations in the human brain.

History

Publication status

  • Published

File Version

  • Published version

Journal

PLoS Biology

ISSN

1545-7885

Publisher

Public Library of Science

Issue

9

Volume

13

Page range

1-27

Article number

e1002262

Department affiliated with

  • Psychology Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2018-10-09

First Open Access (FOA) Date

2018-10-09

First Compliant Deposit (FCD) Date

2018-10-07

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC